Unit7SectionAGrammarfocus-4c（课件）-人教版英语八年级下册

Unit7What'sthehighestmountainintheworld?SectionAGrammarfocus~4c看谁最快QomolangmaItis8,844.43metershigh.TheCaspianSeaItis1,025metersdeep.Itisabout9,600,00squarekilometersinsize.TheSaharaItis6,671kilometerslong.TheNileWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolamgma?It's8844.43metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyoukonwthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.GrammarFocus观察句子红色字体单词，说一说他们的特点形容词的比较级和最高级比较级，最高级的构成规则变化1)一般情况下，单音节或双音节的形容词/副词比较级＋er，最高级＋estsmall-samller-smallest2)以e结尾的词，比较级＋r，最高级＋stnice－nicer－nicest3）以辅音字母＋y结尾的，变y为i＋er,+esteasy－easier－easiest

比较级，最高级的构成4)以一个辅音字母结尾的重读闭音节，双写辅音字母+er/estfat－fatter－fattestwet－wetter－wettest5)多音节和部分双音节的词需要在原级前＋more构成比较级,或＋themost构成最高级careful－morecareful－themostcarefulbeautiful－morebeautiful－themostbeautiful不规则变化：原级汉语意思比较级最高级good,well好的betterbestmany,much许多moremostbad,ill,badly坏的，病的，坏地worseworstfar远的进一步的fartherfurtherfarthestfurthestold老的，旧的年长的，（岁数）大的olderelderoldesteldestlittle少的lessleast妙记顺口溜：“坏”“病”两“多”和两“好”一是“远”来二是“老”little是“少”不是“小”形容词和副词的比较级和最高级1)原级:常用结构as...as...

“和..….一样”eg.ZhangHongisastallasTom.张红和汤姆一样高。2)比较级(用于两者之间的比较)常用结构：比较级＋than...eg.HeistallerthanI.他比我高。3)最高级(用于三者或三者以上的比较)，常用结构:the+最高级+of/in/among...

eg.Heisthefunniestinhisclass.他是他们班最有趣的。大多数形容词和副词都有三个级常用结构/句式Whoisthetallest

inourclass?Wangjiisthetallest

inourclass.Wangjiis__________anyotherstudentinourclass.tallerthanNostudentinourclassis___________Wangji.astallasFillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_______riversintheworld.It’salittle_______thantheYangtzeRiver.2.Qomolangmais8,844.43meters_____.It’soneofthemost________placesforseriousmountainclimbers.3.Nooceanintheworldisas_____asthePacificOcean.4.AlthoughJapanis_______thanCanada,itis_______smaller.longestlongerhighpopularbigoldermuch4a英语表示“有多长（宽，高…）”时，一般将数词和数量单位放在表示长long、宽wide、高high的形容词前作状语。Grammar(Ⅰ)Grammar(Ⅱ)1.Hainanisaverylargeisland.It’sthesecond____islandinChina.A.largeB.larger

C.largest2.Anelephantis_____thanahorse.

muchheavy

B.muchheavier

C.heaviest学以致用3.The_____friendsyouhave,the____youwillbe.

A.more,happy

B.many,happy

C.more,happier

D.many,happier4.Whenheheardacryforhelp,heranoutas_______ashecould.A.hardly

B.quickly

C.finally

D.slowlythe+比较级...，the+比较级“越...就越....”as+原级+as“...与...一样”5.—Whichis____seasoninBeijing?—Ithinkit’sautumn.A.goodB.betterC.bestD.thebest6.Chinais________intheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargestFillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhigh1.TheAmazonRiverisoneofthe______riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.It’soneofthemost_______placesforseriousmountainclimbers.longestlongerhighpopularbigmuchpopularlongoldhigh3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_________thanCanada,itis_________smaller.bigoldermuch太平洋Writetwocomparisonsabouttwotopics.Writetruefacts.Twocities:___________and___________1.___________________________________2.____________________________________________________________________BeijingShanghaiBeijingisasmodernasShanghai.ShanghaiisbiggerthanBeijingandhasalargerpopulationthanBeijing.Twoanimals:___________and_________1.___________________________________2.________________________________________________________________________MonkeyDogAdogisbiggerthanamonkey.Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1._____________________________________2._____________________________________3._____________________________________4._____________________________________5._____________________________________Whatisthehighestbuildinginourcity?Whatisthebusiestsubwaystationinourcity?Whatisthelargestshoppingmallinourcity?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?1.Actionsspeaklouderthanwords.(事实胜于雄辩）2.Betterlatethannever.